XHR - Trigger readystatechange when transitioning from HEADERS_RECEIV…

…ED to DONE

Fixes #3877

components/script/dom/xmlhttprequest.rs

@@ -890,8 +890,8 @@ impl<'a> PrivateXMLHttpRequestHelpers for JSRef<'a, XMLHttpRequest> {
             },
             LoadingMsg(_, partial_response) => {
                 // For synchronous requests, this should not fire any events, and just store data
-                // Part of step 13, send() (processing response body)
-                // XXXManishearth handle errors, if any (substep 1)
+                // Part of step 11, send() (processing response body)
+                // XXXManishearth handle errors, if any (substep 2)
 
                 *self.response.borrow_mut() = partial_response;
                 if !self.sync.get() {
@@ -903,22 +903,23 @@ impl<'a> PrivateXMLHttpRequestHelpers for JSRef<'a, XMLHttpRequest> {
                 }
             },
             DoneMsg(_) => {
-                // Part of step 13, send() (processing response end of file)
-                // XXXManishearth handle errors, if any (substep 1)
+                assert!(self.ready_state.get() == HeadersReceived ||
+                        self.ready_state.get() == Loading ||
+                        self.sync.get());
 
-                // Substep 3
-                if self.ready_state.get() == Loading || self.sync.get() {
-                    // Subsubsteps 2-4
-                    self.send_flag.set(false);
-                    self.change_ready_state(XHRDone);
-                    return_if_fetch_was_terminated!();
-                    // Subsubsteps 5-7
-                    self.dispatch_response_progress_event("progress".to_string());
-                    return_if_fetch_was_terminated!();
-                    self.dispatch_response_progress_event("load".to_string());
-                    return_if_fetch_was_terminated!();
-                    self.dispatch_response_progress_event("loadend".to_string());
-                }
+                // Part of step 11, send() (processing response end of file)
+                // XXXManishearth handle errors, if any (substep 2)
+
+                // Subsubsteps 5-7
+                self.send_flag.set(false);
+                self.change_ready_state(XHRDone);
+                return_if_fetch_was_terminated!();
+                // Subsubsteps 10-12
+                self.dispatch_response_progress_event("progress".to_string());
+                return_if_fetch_was_terminated!();
+                self.dispatch_response_progress_event("load".to_string());
+                return_if_fetch_was_terminated!();
+                self.dispatch_response_progress_event("loadend".to_string());
             },
             ErroredMsg(_, e) => {
                 self.send_flag.set(false);

tests/wpt/metadata/XMLHttpRequest/anonymous-mode-unsupported.htm.ini

@@ -1,6 +1,5 @@
 [anonymous-mode-unsupported.htm]
   type: testharness
-  expected: TIMEOUT
   [XMLHttpRequest: anonymous mode unsupported]
-    expected: TIMEOUT
+    expected: FAIL
 

tests/wpt/metadata/XMLHttpRequest/response-json.htm.ini

@@ -1,3 +1,8 @@
 [response-json.htm]
   type: testharness
-  expected: TIMEOUT
+  [JSON object roundtrip]
+    expected: FAIL
+
+  [JSON roundtrip with Japanese text]
+    expected: FAIL
+

tests/wpt/metadata/XMLHttpRequest/send-entity-body-get-head-async.htm.ini

@@ -1,9 +1,8 @@
 [send-entity-body-get-head-async.htm]
   type: testharness
-  expected: TIMEOUT
   [XMLHttpRequest: send() - non-empty data argument and GET/HEAD - async, no upload events should fire (GET)]
-    expected: NOTRUN
+    expected: FAIL
 
   [XMLHttpRequest: send() - non-empty data argument and GET/HEAD - async, no upload events should fire (HEAD)]
-    expected: NOTRUN
+    expected: FAIL
 

tests/wpt/metadata/XMLHttpRequest/status-async.htm.ini

@@ -1,3 +1,8 @@
 [status-async.htm]
   type: testharness
-  expected: TIMEOUT
+  [XMLHttpRequest: status/statusText - various responses 7 (GET 402)]
+    expected: FAIL
+
+  [XMLHttpRequest: status/statusText - various responses 9 (CHICKEN 402)]
+    expected: FAIL
+